Wave-like processes in the ionosphere under quiet and disturbed conditions. 2. Analysis of observations and simulation

The amplitudes and relative amplitudes of electron density wave-like disturbances (WDs) with periods of 30–120 min at altitudes of 125–500 km (100–1000 km in individual experiments) under the conditions of a quiet ionosphere during magnetic and ionospheric storms and two solar eclipses are analyzed. The observations of the WD amplitudes and their altitude variations corresponded to the data of theoretical simulation in a number of cases. On the whole, the altitude variations in the WD amplitudes are more complicated than such variations derived from a simple theoretical model presented here.